Home / 813,708.08-1,123,033.40-451,212.56

Finding the Fourth Proportional to 813,708.08, 1,123,033.40 and 451,212.56

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Solution

The fourth proportional to 813,708.08, 1,123,033.40 and 451,212.56 is: 622,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,708.08 : 1,123,033.40 = 451,212.56 : x
  2. Step 2: Convert to fraction form
    813,708.08/1,123,033.40 = 451,212.56/x
  3. Step 3: Cross multiply
    813,708.08x = 1,123,033.40 × 451,212.56
  4. Step 4: Simplify right side
    813,708.08x = 506,726,775,379.50
  5. Step 5: Solve for x
    x = 506,726,775,379.50/813,708.08
  6. Step 6: Final answer
    x = 622,737.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.